Before .NET 10 System.Text.Json and deserilization from Stream

Program.cs

using System.IO.Pipelines;

var pipe = new Pipe();
_ = Task.Run(async () =>
{
    try
    {
        await JsonSerializer.SerializeAsync(pipe.Writer, new Person("Alice"));
        await pipe.Writer.FlushAsync();
    }
    finally
    {
        await pipe.Writer.CompleteAsync();
    }
});


var stream = pipe.Reader.AsStream();
var person = await JsonSerializer.DeserializeAsync<Person>(stream);